WordGPT

Solve 12x + 6 = 90

The solution of 12x + 6 = 90 is x = 7.

Explain it step by step in chatMake a short video of it
The lines y = 12x + 6 and y = 90 meet at x = 72468101220406080100120140160x = 7y = 12x + 6y = 90
The lines y = 12x + 6 and y = 90 meet at x = 7. The solution of the equation is the x-coordinate of the point where the two sides are equal.

How to work it out

  1. 1

    The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.

    12x+6=9012x + 6 = 90
  2. 2

    Subtract 6 from both sides:

    12x+6−6=90−6 ⇒ 12x=8412x + 6 - 6 = 90 - 6 \ \Rightarrow\ 12x = 84
  3. 3

    Divide both sides by 12:

    12x12=8412 ⇒ x=7\frac{12x}{12} = \frac{84}{12} \ \Rightarrow\ x = 7
  4. 4

    Check: put x = 7 back into the equation.

    12⋅7+6=84+6=90✓12\cdot7 + 6 = 84 + 6 = 90 \checkmark
LaTeX source of the formulas on this page
\[ 12x + 6 = 90\ \Rightarrow\ x = 7 \]
\[ 12x + 6 = 90 \]
\[ 12x + 6 - 6 = 90 - 6 \ \Rightarrow\ 12x = 84 \]
\[ \frac{12x}{12} = \frac{84}{12} \ \Rightarrow\ x = 7 \]
\[ 12\cdot7 + 6 = 84 + 6 = 90 \checkmark \]

Trying values of x in 12x + 6 = 90

x12x + 6Equals 90?
566no
678no
790yes
8102no
9114no

Questions

What is x in 12x + 6 = 90?

The solution of 12x + 6 = 90 is x = 7.

How do you solve 12x + 6 = 90?

Subtract 6 from both sides to get 12x = 84, then divide both sides by 12 to get x = 7.

How do I check the answer?

Replace x by 7: 12(7) + 6 = 90, which is 90.

Similar equations

    Solve 12x + 6 = 90: x = 7 (steps and check) | WordGPT